Acoustic member mounting means for use in typewriters

Abstract

An acoustic member mounting means for use in typewriters and similar machines wherein the mounting means includes first and second vibration insulating means which prevents undesired sound waves from being generated in the acoustic member.

What is claimed is: 
     
       1. In a typewriter in which input signals generate sound waves in an acoustic member, said typewriter having means for mounting the acoustic member comprising: a first insulating means in which the acoustic member is affixed;   a member in which the first insulating means is supported;   a second insulating means on which the support member means is mounted; and,   means for securing the second insulating means to a typewriter frame.   
     
     
       2. In a typewriter as set forth in claim 1, wherein the acoustic member, the first insulating means, and the support member are located in a substantially vertical plane. 
     
     
       3. In a typewriter as set forth in claim 2, wherein the second insulating means is located in a non-vertical plane. 
     
     
       4. In a typewriter as set forth in claim 1, wherein the first insulating means is urethane material. 
     
     
       5. In a typewriter as set forth in claim 1, wherein the second insulating means is gum rubber. 
     
     
       6. In a typewriter as set forth in claim 1, wherein the means for securing the second insulating means to the typewriter frame include a pin which extends through an opening in the second insulating means, and through an opening in the typewriter frame. 
     
     
       7. In a typewriter as set forth in claim 1, wherein the second insulating means is secured to a typewriter keylever extrusion. 
     
     
       8. In a typewriter as set forth in claim 1, wherein a substantial portion of the support member is U-shaped. 
     
     
       9. In a typewriter as set forth in claim 1, wherein a substantial portion of the first insulating means is U-shaped. 
     
     
       10. In a typewriter as set forth in claim 1, wherein the durometer hardness of the first insulating means is less than the durometer hardness of the second insulating means. 
     
     
       11. In a typewriter as set forth in claim 1, wherein the acoustic member is a rod having teeth extending therefrom. 
     
     
       12. In a typewriter as set forth in claim 1, wherein the first insulating means is adhesively secured in the support member. 
     
     
       13. In a typewriter as set forth in claim 12, wherein the first insulating means has a skin which prevents adhesive from being absorbed therein. 
     
     
       14. In a typewriter as set forth in claim 1, wherein the first insulating means include three discrete segments. 
     
     
       15. In a typewriter as set forth in claim 14, wherein one segment of the first insulating means is located in the center of the acoustic member, and the other two segments of the first insulating means are located near the ends of the acoustic member. 
     
     
       16. In a typewriter as set forth in claim 1, wherein the acoustic member is adhesively secured in the first insulating means. 
     
     
       17. In a typewriter as set forth in claim 15, wherein the acoustic member is a rod having teeth extending therefrom, and wherein the segments of the first insulating material surround the rod, except for the teeth extending therefrom. 
     
     
       18. In a typewriter as set forth in claim 1, wherein the support member has a tab portion having an opening therein through which the second insulating means extends.